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SUVs Chevrolet Suburban & Tahoe Chevrolet Suburban and Tahoe Start problems
180 messages, Last post on Dec 04, 2009 at 7:57 PM
You are in the Chevrolet Suburban & Tahoe Forum. Your Hosts are steve_ & tidester
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Hi, I've been having problems when starting my 1997 Chevrolet Tahoe (147000 miles). This doesn't happen all of the time, but when it does upon turning the ignition there is a loud POOF that comes from the engine, with rough idling, and then turns off (then white smoke). I would wait a couple of seconds and turn the ignition again and it turn over fine. It happens with cold/hot starts, and morning or night. I've taken it to the shop to get a diagnostic test, but nothing was found wrong. The only thing I could think of is that some gasoline is sitting somewhere in the throttle body. Then again I'm no mechanic. Any information would be greatly appreciated. Thanks, Dennis |
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| Left my 03 suburban parked in driveway for 14 days. Came back and it will crank but not start. Never failed me before. What can I check for? What are some issues I need to look at? | |
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Replying to: tdarr (Apr 27, 2009 11:14 am) I have the same problem on a 2004 Tahoe LT I have installed two new batteries, two new starters, and a new negative ground lead. The car will start if I shake the negative ground lead. Everyone I have contacted with this problem has unloaded the car but I only have 54000 miles on it and it has a great ride and is roomy. GM dealers don't seem to have a clue. Thanks. Terry
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I have a 2000 tahoe when I go to start it it will crank over and wont start then I crank it over again and it might start , it never starts on the first crank 75% it will start on second crank 25% it starts on the third crank. what do I need to do to fix it I dont want it to get any worse?
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Replying to: ebenkamp (Aug 25, 2009 9:10 pm) When you start it next time when it normally would not start on the first try turn the key to ON position for 3-5 seconds and then to OFF position. Turn key to ON position again for 3 - 5 seconds and then OFF. Now turn key all the way to START position and see if it starts. Above procedure charges the fuel rail. When you first turn the key ON the fuel pump will start running but it stops after 2 - 3 seconds if engine does not start. Doing above key to ON position a couple of times will run the pump and should assure you have enough fuel pressure when you actually then start it on the third time. If your car really starts on the third time after two "charging" cycles with the key then your problem indeed seems to be fuel pressure issue. Fuel pressure issue can be caused by two things, the fuel pump going bad or fuel pressure regulator going bad. Third one could be clogged fuel filter but that should cause some other problems that just starting issues. Get your fuel pressure checked especially for the moment you are turning the key for the first time. You should see fuel pressure at normal running pressure above 45 psi. Pressure requirement in your car might be different but I think it should be something from 45 psi to 60 psi. Arrie |
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| My 1996 Tahoe was having terrible problems starting and running correctly. The initial diagnosis was the crankshaft position switch was malfunctioning. After almost $2000 dollars of replacing the sensor, engine tune-up, fuel filter and fuel pump I was still having the same problems, but not all the time. I had a local mechanic due the work and he said take it to Chevy and have them diagnose the problem, which they determined was still the crankshaft position switch was malfunctioning. Since my mechanic had done the original work I took the Tahoe back to him with the Chevy diagnosis problem. He crawled under the truck with it running and saw the sensor moving around while it was running. He took the sensor out and discovered that one of the mounting bolts screws into a brass fitting inside the plastic timing chain cover. The brass fitting was loose and just needed a screw driver inserted into it to spread it to increase the tension on the plastic cover. My mechanic put it back together and it resolved all my problems, meaning most of the $2000 dollars I had spent trying to fix a problem that ended up being caused by maybe a 25 cent brass fitting in a plastic cover. Live and Learn. By the way my 1996 Tahoe has almost 154000 miles on it with the original engine and transmission. | |
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| 1994 chevy suburban 1500. will crank, but willnot start. fuel press checks good. no fuel flow from the injectors.Already replaced injectors, inline fuel filter, . Will attempt to start when stat fluid added. | |
Have a 2004 Tahoe that has failed to start without any pattern for several months now . Usually at the mall or when out with the kids. All works when I try to start, but will not. All the lights function and the radio and tv work. No sound at all when trying to start. Have had towed to dealer 5 times. My luck, always started when got there. Finally, this week when I went to get car, did not start at the dealer. They now say it is the ignition switch, but need to check to make sure this is the problem. Has anyone had these same issues and had them resolved with success? Thank you.
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Replying to: polk1964 (Oct 05, 2009 6:55 am) Could be any number of factors, battery, corrosion/loose terminal connections, bad starter or solenoid, key switch (particularly if you have a big ring of keys/weight hanging), security chip programming, etc. Nice to find a hard failure, where they can meter to find exactly where the problem is. Else, you have to throw parts at intermittent problems, and that can get expensive fast. |
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I've been trying to find this problem for months now... My truck gets progressively more difficult to start, the longer it sets. On mornings when the truck was driven the previous evening, it will start no problem, but will run rough (really rough - will die at idle) for 15 minutes or so then smooth out and run fine once it has warmed up. IF I let the truck set for a full 24 hours or more, it won't start. In the past, during hard start episodes, I could get it to start if I cranked and cranked and cranked (cooling the starter and cables with water on occasion). When it would start, it would act flooded (lots of smoke and sputtering) - then again it would smooth out eventually and run fine. After the initial hard start, subsequent starts during the day would be uneventful. During one of the hard-start episodes, I confirmed spark with a timing light and tried to use starting fluid with no luck. Pulled plugs and they were a mess, so I replaced them. The motor is a rebuild with about 30,000 miles on it. The fuel pump is a couple of years old. It has new plugs, wires, cap, rotor, coil, ICM, and I have the upper intake off now to replace the fuel pressure regulator (thinking the fuel would leak by during the time between starts). Am I looking in the right place??? |
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